Digital signal processor based over-current relay using fuzzy logic controller

• Main Authors: Goh Y.L., Ramasamy A.K., Nagi F.H., Abidin A.A.Z.
• Other Authors: 36871489800
• Format: Article
• Published: 2023
• Subjects: digital relaying; digital signal processor; fuzzy logic; power system protection; Electric power system protection; Electric power transmission; Fuzzy logic; Fuzzy systems; Overcurrent protection; Power transmission; Relay protection; Signal processing; Speed control; Digital relaying; Digital signals; External sources; Fuzzy logic control; Fuzzy logic controllers; IEC standards; If there are; Overcurrent relays; Power delivery; Power system protection; Protection relay; Real-time application; Texas , USA; Texas Instruments; TMS320F2812; Digital signal processors
• Institution: Universiti Tenaga Nasional

Protection and control are important aspects in real-time applications. Protection and control are required to ensure that safety and security of the system is achieved. In a power system, protection relays are used to minimize the disturbances caused by failure in the system to ensure continuous power delivery. Protection relays, such as over-current relays, are required to improve their reliability, since the power system is seriously affected by the faults either caused by internal or external sources. The relay must work efficiently to trip the circuit breakers if there are faults present. In this article, an over-current relay is designed based on fuzzy logic control to improve the overall performance of the relay. The over-current relay is implemented on a digital signal processor (TMS320F2812, Texas Instruments, Dallas, Texas, USA). The relay performance was compared with the IEC standard, and the results obtained are promising. Copyright � Taylor & Francis Group, LLC.